Finding the Fourth Proportional to 142,649.73, 197,061.69 and 113,931.69

Step by Step Solution

1. Step 1: Write the proportion equation
   142,649.73 : 197,061.69 = 113,931.69 : x
2. Step 2: Convert to fraction form
   142,649.73/197,061.69 = 113,931.69/x
3. Step 3: Cross multiply
   142,649.73x = 197,061.69 × 113,931.69
4. Step 4: Simplify right side
   142,649.73x = 22,451,570,657.16
5. Step 5: Solve for x
   x = 22,451,570,657.16/142,649.73
6. Step 6: Final answer
   x = 157,389.50